Cooling apparatus



Jan. l2 1926. 1,569,191

H. D. LATHROP Er AL COOLING APPARATUS Filed oet. 25. 1922 s sheets-Sheet' 1 Jan. 12 1926.

, l 1,569,191 H. D. LATHROP ET AL COOLING APPARATUS Filed Oct. 23. 1922 8 Sheets-Sheet 2 Jan. 12 ,1926. A1,569,191

H. D. LATHROP ET AL COOLING APPARATUS Filed Oct. 23, 1922 8 Sheets-Sheet; 5

no o ooo 0 on ooo non ouoooooooonouoono 00u00 I J v Jap. 12 .1926. y 1,569,191

H. D. LATHROP ET AL COOLING APPARATUS Filed oct. 25. 1922 8 sheets-sheet 4.

Jan. 12 1926. 1,569,191

H. D. LATHROP Er A1.

COOLING APPARATUS Filed Odi- 25. 1922 a sheets-sheet' s Jan. 12 1926 1,569,191

H. D. LATHROP ET AL COOLING APPARATUS Filed OCT.. 2:51922 y8 Sheets-Sheet 6 k /i f7 a Jan. 12 1926. l 1,569,191

H. D. I ATHROP ET AL COOLING APPARATUS Jan. 12 1926. 1,569,191

\ H. D. LATHROP Er AL COOLING APPARATUS Filed Oct. 25. 1922 8 Sheets-Sheet .8

Patentedilan.. I2, v1.926.

.UNITED -s1-.1 .rrs PATENT. OFFICE.A

l HARRY D. LATIIRCP AND WALTER E. PAIrLsoN. 'or CHICAGO, ILLINOIS; sAIn PAUL- soNAssIeNoR To sAIn LATIIRCI'.

CooLINe APPARATUS.

To all whom it' may Concern.'

Be it known that We, HARRY D. LAT-Hnor and lVALTER H. PAULsoN, citizens of the United States, and residents -of the city of L Chicago, county of Cook, and State of Illinois, have invented certain new and useful .Improvements in Cooling Apparatus, of which. the following is. a specification.

This invention relates to cooling apparatus, and more particularly to an apparatus for cooling milk bottles, which have been previously heated to high temperatures during sterilizationv or', washing processes, in such a manner that-the bottles are gradulf' ally and `quickly cooled without` cracking or breaking the same by sudden reduction in the temperature of the bottles, so that the bottles are almost immediately ready to be filled With milk.`

Another object of the invention is to provide means' for advancing the bottles through a housing in one direction,' and to direct a cooling current of air through said housing in the opposite direction, so that m5 the cooling air is automatically tempered bypassage over the bottles, and automati` cally' tempers the bottles with` the result .that by the time the bottles reach a'point'- adjacent the end of the `housing they will $0 be suiciently cooled so, that a cold water spray may bedirected onto same Without breaking the bottles.

Another object of the invention is to arrange the cooling means in such a manner that the same is initiallydirected to the' outside of the bottles, but as rthe bottles are somewhat cooledduring their travel, the -cooling means is also introduced Ainside of the bottles, further cooling same, and in addition different and'moredrastic cooling means such asI a cold water spray, is directedonto' the bottles when same arecooled enough to withstand it without breaking.

Another object of the invention'is-to pro- 'f vide a housing having atortuous,passageway therethrough, so that the bottles travel a comparatively long distance within a small space. Another'object is to provif means for conveying thebottles thrug the tortuous passageway-at a uniform and predetermined rate of speed; still another object of the invention is to lprovide guide means so that a plurality of rows of bottles may be conveyed through the housing fat' object of the invention is to arrange `means for directing air inside of the bottles a cer* tain distance apart so that during the passare of the bottles through the housing a p urality of jets of air are directed into the bottles.

@ther objects will appear hereinafter. The invention consists in the .combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying .drawings forming a part of this specification, and in which,

l ig l is a front elevation of the invention;

Fig. 2 is a fragmentary longitudinal sec'- g partv -of said 'guiding means; and Alstill another tional view of the invention on 'the line 2 2, ig. l, showing the forward portion of the` apparatus;

Fig. 3 is ,a'fragmentary longitudinal sec-l tional view of the invention on the line 3 3, Fig. 4, showing the rear portion of the-machine;`

Fig. 4 isa vertical sectional view of the invention taken on the line 4 4 of Fig. 3; Fig. 5 is a ,transverse sectional view on the line 5 5, Fig. 3; Y

Fig. 6 isa plan view'of the forward end of theinvention, partly in section,` on the line 6 6,.Fig. 2;

- Fig. 7 is a transverse sectional view-of the invention, on the line 7 7, Fig. 1;

Fig. 8 is a transverse' sectionalviewthe invention, on the line 8 8 of Fig. and I Y Fig. 9j1s a fragmentary detail View of conveyor links, showing the manner of fastening slats on the chain to' form the conveyor. f f

Referring' to the drawings, 1Q represents a housing of suitable Nsheet metal, mounted upon 1a suitable frame preferably comprising vertical angle bars 1l, 12 and 13, longitudinal bars 14, 15 and 16, and transverse bars 17, 18, 19, 20, 21, 22 and 23, as' shown in the drawings.

The housing 10 is preferably provided with parallel passage-ways 24, 25 and 26, such passage-ways preferably communicating at their opposite ends so as to form a continuous tortuous passage-way# Preferably disposed above the passage-way 26 is a com artment 27, which is co-eXtensive the curve lformed by the passage to a pointadjacent where said compartment is deflect- .ed int-o the passage-way 25. Each of the deflectors 28 preferably has a funnel-shaped jet 29 communicating therewitlnwhich projects into the passage-Way 26,` and into the rear end-'of the passage-way 25. The deflectors 28 are preferablyI spaced apart a dist'ance corresponding to the. distance between the mouths of quartmilk bottles for a purpose as will presently appear. Preferably mounted upon the angle bars 18 and 19 of the frame, is a supporting base 30, `which base may have a lateral extension.

31 thereon. Mounted upon the base 30 lis a turbine 32 of any suitable type, which is adapted to be driven by a motor 33,y so as to direct a strong current of air into the compartment 2'7, through the deflectors 28 and into the passage-way 26, -being then v etlected at the rear end ofthe passage 25 thereinto, 'and continuing through said passage 25 and outwardly through-the passage. 24.

Disposed in the passage-ways 24 and 25, substantially at a point intermediate their side walls is a vpendant guide or rail 34,

which follows the conformation of the tortuous passage formed by the passages 24 ami 25. The guide member 34 per se terminates at a point adjacent the rear portion of the passage 26. In its place is provided a plurality of water pipes 35, disposed in spaced superposed relation, and supported in such passage-way by'l a suitablebracket 36, said pipes being provided with a plurality of spraying apertures at their opposite si'des for a purpose which will presently become apparent. Mounted upon the. side walls of the passage 26 preferably in the same planes as the pipes 35 are similar pipes 37 and 38. the pipes 37 and 38 having a plurality of spray apertures which are directed inwardly vtoward the pipes 35. It will be seen that the pipes 35 being disposed in the position of the guide I'nember 34 will form a substitute for the guide 34 and act in place of said guide. In addition to the guide 34 and the pipes 35, 37 and 38, we preferably provide the opposite walls of the passage 26 with angle bars 39 which preferably extend inwardly'to the point where the passage 26 curves into communication with the passage- 25, the ends of the bars 39 preferably being tapered as shown at 40 so as to afford eiiicient guide means for bottles traveling therepast.

The water pipes" 35, 37 and 38 are disposed in three superposed tiers as shown in Figs. 1,2, 3 and 4, and each tier of said pipes is connected to a separate header, the lowermost tier being connected to a header 41, the intermediatetie'r toa header 41', and the uppermost tier to a header 42, each of -said headers being-controlled by separate valves 43, 44 and 45 respectivelyfso that the water in the various tiers of pipes may be simultaneously controlled.

' Any suitable means are proyided for conveying the bottles through the tortuous path formed by the communicating passages 24, 25 and 26; however, we preferably provide endless conveyors 46, 47 and 4 8, in the` passage-ways 24, 25 and 26 respectively, and so arrange thejconveyors that the conveyor 46 travels toward the forward end of the machine, the conveyor 47 toward the rear-end of the machine, and the conveyor 48 toward the forward end of the machine. arrangement it 4will g be seen that bottles placed on the conveyor lat the beginning ofl of the guide membery 34, and the pressure exerted by bottles behind same will be delivered onto the conveyor 47, which will carry such bottles into Vthe rear end of the passage 25 and into' the passage26 as will be readily appreciated. As stated any suitable conveyors may be employed, but we preferably construct such conveyors in the following manner.- Mounted on the frame by any suitable means is a shaft 49, which may .have sprockets 51 keyed thereon and sprocket 52 loosely mounted thereon. The rearend ofthe machine is also provided 'with la shaft 53, which'has sprocket wheels 54 loosely mounted thereon. Sprocket chains 54 areadapted to extend over the sprocket wheels soas to form endless conwith a worm gear 62, which is adapted to By this J Ion a shaft 64 which shaft in turn is i,driven thus partially cooling the botles, At the.

by a worm gear 65 driven from a worm 66,

the worm 66 being connecd to apulley 67, said pulley being driven by a belt 68 from -a pulley 69 connected to the motor shaft 33.

preferably has the side edges of the slats 55 disposed aboveJ angle bars 70 as shown in Figs. l and 4 to prevent tilting of the conveyors.

A drain pan 71 is preferably mounted beneath the passage-way 26, to catch the drainage water from the' spraying pipes 35, 37 and 38, such water being conveyed to a discharge .point by any suitable means. (not 'shown In operation milk bottles ared fed towthe conveyor 46 at tlie'rear end of the machine, preferably in two rows of adjacent bottles; said bottles are carried by the conveyor atn a comparatively low rate of speed through the' passage 24, into the passager 25, and all during this time such bottles are subjected to a strong" current fof air from the turbine 32 through the vcoA artment 27 `and downwardly linto the passage 25, the air passing over the bottles becoming automatically tempered, or milder, as it travels past the bottles toward the outlet of the passage 24 point-adjacent the rear en d of the passage:

. way the current of air is introduced into the bottles by meansof the defiectors 28 and the' jets 29; the bottles thus being further cooled,then travel into the passage-Way 26, and pass the s rays of water ldelivered .by thef-pip'es', 3 and 38, at the same time continuously receiving a current of cool air through `the deflectors 28 and jets 29, until lthe bottles are delivered at'the end of the passage 26 onto a table "such asthat shown at 72 in Figure 2 of the drawings, in a thoroughly cooled condition, so that they may be .immediately filled with milk.

It is to be noted that a `most important practical feature ofthe invention lies in the fact that' there is a combined application of air and Water to the bottles in such a manner that the air automatically tempers9 itself to the bottles, and automatically tempers the y traveling in opposite directions, which auto-v effect 'and makes itpossible to quickly cool niatically produces the required tempering the bottles from. atvery high to-a very low temperature without breaking the saine;

While we have illustrated and described the preferred form of construction for carrying our invention into effect, this is capable of variation and modification without departing from the spirit of the invention. We

therefone` do not wish to be limited to the. precise (details of construction set fortH, but desire to avail ourselves of such variations and modifications as come within the scope of the appended claims.

Having described our inventionwhat We cla-im as new, and desire to secure by Letters Patent is:

' l; A cooling apparatus comprising means foradvancing heated hollow `objects therethrough; and means for directing different degrees of cooling medium to the inside ofsaid articles at -different points in their travel.

2. A cooling apparatus comprising means for conveying a plurality of heated articles therethrough; means arranged in co-operative relation With said articles for cooling same from the inside andthe outside; and additional -cooling means introduced after said articles have been partially cooled.

3. A cooling apparatus comprising means for advancing heated hollow objects therethrough in a tortuous direction; and means for directing different degrees of cooling medium to the inside of said objects and for automatically tempering the cooling medium to said objects duringthe operation of the apparatus."

4. .A cooling apparatus comprising\means for advancing heated objects therethrough; andA means for directing different degrees ofv .cooling medium both inside and outside of said articlesv at different points vin their travel.

5. A cooling apparatus comprisingmeans `l for conveying a plurality of heated articles #6. A cooling apparatus comprising level means for conveying a`- plurality of heated articles Vin acontinuous uprightpositiontherethrough; means .arranged in 'coopera- `tive relation with said articlesI for cooling same and automatlcally tempering the cooliner mediumJtov said articles during the operation of said apparatus; and meanspfor applylng another and different cooling medium cooled.

7. A cooling apparatus comprising means for conveying a plurality of heated articles therethrough; means arranged in cooperative relation with said articles for cooling to said articles after they are partially iso same and automatically tempering the cooling medium to said articles during the operation of said apparatus; and means for directing cooling me-dium both inside land out-side of said articles.

8. A cooling apparatus comprising means for conveying a plurality of heated articles therethrough; means arranged in'cooperative relation with said articles for cooling same and automatically tempering the cooling medium to said articles during the oper,- ation of said apparatus; said means during a portion of the ltravel of said articles being directed to the outsidethereof, and at V another point in said travel being directed` to both ,the inside and outside.

9. A cooling apparatus comprising means for'conveying a plurality of heated articles therethrough; means arranged in cooperative rela-tion with said articles for cooling 'same and automatically tempering the cooling medium to said articles during the operation of said apparatus, said means during a portion of the travel of said articlesbef ing directed to the` outside thereof, and at another point in said travel being directed to boththe inside and outside; and means for introducing another .and more drastic means to the outside of said article.

l0. A coolingapparatus comprising means for conveying aplurality of hea-ted articles therethrough; means` arranged in coopera- .tive relation With said articles for cooling same and automatically tempering the cooling medium to said articles during the operation of said apparatus; said means during a portion of the travel of said articles being directed to the outside thereof, and at another point in said ,travel being directed to the inside thereof; and means for introducing another and more drastic cooling medium to the outside of said article at the same time that said first named cooling medium is directed to the inside Of said article.

11. cooling apparatus comprising means for conveying a plurality of heated articles therethrough; means arranged in coopera.-

tive relation with said articles for coolingsame and automatically tempering the cooling medium to said articles during the operation of said apparatus; means for applying another and different cooling medium to said articles after they are partially cooled; and means for accommodating said laterally mentioned cooling medium to objects of different sizes.

v12. A cooling apparatus comprising means wfor introducing a. body of cooling medium traveling inone direction; a plurality of heated articles traveling in said body in the opposite direction; and means for applying another and differently affective cooling medium to said articles When the samem are 5 partially cooled.

. 1.3. A cooling-apparatus comprising means for 1ntroduc1ng a body of cooling medium traveling in one direction; a plurality of heated articles traveling in said body in the opposite direction; and means for directing cooling medium both inside and outside of said articles.

MJA cooling apparatus comprising means heated articles traveling in said body in the opposite direction: said means during a portion of the travel of said articles being-directed to the outside thereof, and at another point in said travel'being directed to both the inside and outside; and means for introducing another and more drastic means to the outside of saidarticle.

16. A cooling apparatus comprising means for introducing a body of cooling medium traveling in one direction; a plurality of heated articles traveling in said body in the opposite direction, said means during a portion off the travel of lsaid articles rected tothe outside thereof, and at another point in said travel being directed tol both the inside and outside; and means for introducing another and more drastic cooling medium to the outside of said article at the same time that said first named cooling medium`is directed to the inside of said article.

- 17. A cooling apparatus comprising means.

for introducing a body of cooling medium traveling in one direction; a plurality of heated articles traveling in said body in the opposite direction, said means during-a portion of the travel of said'articles being di-v rected to the outside-thereof, and lat another point in said/'travel beingl directed to both the inside and outside; means for introduc- 1'8. -A cooling apparatus having a pluralbeing di- -ity of passages arranged parallel laterally and forming a tortuous passage-way therethrough; and means for conveying articles through said passage-Way, said means comprising separate conveyors traveling in different directions. 'l

19. A cooling 'apparatus comprising a lhousing having horizontally annexed paral- 'y lel passage-Ways communicating at their opposite ends; a-conveyor for each of said passage-Ways for ycarrying articles in an upright position, the outer of said conveyors being driven in the same direction While the inner of said conveyors is driven in the opposite direction; and ,means for directing different lcooling mediums along said -passage-Way. l

20. A cooling apparatus .having a tortuous, level passage-Way therethrough; means for conveying articles in acontinuous upright position through said passage-way, said' means comprising separate conveyors traveling in different directions; means for transferring articles from onel conveyor to another, and means for directing cooling medium along said passage-yvay.

21. A cooling apparatus comprising a passage-Way; means for conveying articles 'through said passage-Way; and means for directing a cooling medium both inside and outside of said articles duringthe'rr travel.

22. A cooling apparatus having a tortuous passage-Way therethrough; means for conveying heated articles rthrough said passage-Way, said means comprising conveyors traveling in different directions; andv means for directing a coolingmedium both inside and` outside of said articles during their travel.

23. A cooling apparatus having a tortuous passage-Way therethrough; means for conveying heated articles .through said passage-Way, said means 4comprising conveyors traveling in diierent directions; and means for directing a cooling medium along said passage-Way ina direction opposite to the travel of said articles; and means'for directing a cooling medium both inside and outside of `said articles during their travel.V

24. A cooling apparatus having a passage- Way;J means for conveying articles through said passage-Way; means for introducing a cooling medium outside of said articles during part 'of their travel, and means for `1ntroducing a cooling medium both inside and outside ofsaid articles Aduring another part of said travel.

25. A cooling apparatus'having a passagevvay; means for conveying articles through said passage-way; means forintroducing `a cooling medium outside of said/articles during part of their travel, means. for intro-l ducing a coolingmedium' both inside and outside yof said articles during another part of said travel;vand means for introducing additional drastic cooling 4means to the outside of said articles' during the latter part of their travel.

26. A cooling apparatus- Vcomprising means for introducing a body of cooling medium traveling in one direction a plurality of heated 'articles traveling in said body in the'opposite direction; and means for applying another and more drastic cooling medium to said articles after they are partially cooled, said drastic means being-- a cold Water spray. f

27. A cooling apparatus comprising means for conveying a plurality of heated articles therethrough; ,means arranged in ,cooperative-relation with said articles for -cooling same and automatically tempering the cooling medium to said articles during ,75

the operation of said apparatus; means for applying another and di'erent .cooling medium to said articles after they are'pa-rtially cooled; and .means for accommodating said latterly mentioned cooling medium to objects of did'erent sizes, said accommodating means comprising Water sprayingv pipes fsa . l29. A cooling apparatus comprising a.

housing having a continuous passage-way therethrough; means for conveying heated articles through said passage-Way in one direction; means ondirecting air 'through said passage-way in the opposite direction; and Water "ipes arranged in superposed tiers in sai Apassage-way adjacent the dis charge end thereof. H

30.11A cooling apparatus comprising a housing having a continuous passage-Way therethrough; meansfor conveying heated articlesthrough saidpassage-Way inV one direction; means for-directing air through said passage-way in the-opposite direction;

Water pipes arranged in superposed tiers in said pass e-Way adjacent the discharge end ther-eo and valve means for controlling each tier of/saidwater pipes.

31-A cooling apparatus comprising a housing. having a continuousfpassage-way therethrough; means for conveying heated articles through said rection; means 'for rectlng air through said .passage-way in the opposite direction;

and centrally disposed guide means extending through said housing, vsaid guide means terminating short `of the 'discharge end of n said passage-way; 'and water spray pipes disposed 1n said passage-way and forming `a continuationof said .guide means.

(p assage-Way in one di- 32. A cooling apparatus comprising a housing having' a' continuous passage-Way therethrough; means for conveying heated articles through said passage-way in one direction; a compartment disposed adjacent said passage-way,` said compartment being substantially co-extensive with said passageway for a' portion thereof adjacent the dis-- chargek end of same, and -then merging into said passage-Way; means fordirecting air through Y said compartment and said passage-Way in a direction opposite to the travel of said heated articles; and deflectors said passage-way in a direction opposite to the travel of said heatedarticles; deliectors in said compartment 'communicating with said passage-way. for directing air into said articles, said delectors being spaced apart a distance equal to the distance between said heated articles.

34. A cooling apparatus comprising a housing having a continuous passage-way therethrough; `means for conveying heated -articles through said passage-way in one direction; ya compartment disposed adjacent .said passage-way, said compartment being substantially co-eXtensive with said passageway for a portion thereof adjacent the discharge end of same,`then merging into said passage-way; means for directing air through said compartment and said passageway in a direction opposite tothe travel of saidheated articles; deflctors in said compartment communicating with said passage-way,for,-directing air into said articles; and Water spraying pipes disposed in saidv passage-way adjacent the disc arge end thereof for'spraying said heated articles 1 as they progress ktherepast.

35. A cooling apparatus-comprising ii 4 housing having a continuous passage-way therethrough; means for conveying heated articles through said passage-way in one direction;`a compartment disposed adjacent said passage-way, said compartment being. substantially co-extensive with said passage-way for a portion thereof adjacent the discharge end of same, then merging into said passage-way; means for directing air through said compartment and said passage-way in a direction opposite to the tr vel f saidheatedarticles; deliectors insaid compartment-communicating with said passage-Way for directing air into said-arti cles; and water spraying pipes disposed in said passage-Way adjacent the discharge-end thereof for spraying said heated articles as they progress therepast, said water pipes passage-Way;

through said compartment and said passage- 4housing having a continuous passageway therethrough; [means lfor conveying heated articles through said passagel'way in one d1- rection; a compartment disposed adjacent said passage-way, said compartment being 'substantially co-extensive with said`passageway for a portion thereof adjacent the discharge end of same, then merging intosaid means for directing air way in a direction opposite to the travel of said heated articles; del'lectors in said compartment communicating with said passage-way for directing air into said articles; water spraying pipes disposed in said passage-way adjacent the discharge end thereof for spraying said heated articles as they progress therepast, said Water pipes being arranged in superposed tiers in said passage-way; and valve means for controlling each tier of said Water pipes.

37. A cooling apparatus comprising a housing having a continuous passage-Way therethrough; means for conveying heated articles through said passage-way in one direction; a compartment disposed adjacent said passage-Way, said compartment being substantially co-extensive with said passage-way for a portion thereof adjacent the discharge end of same, and then merging into said assage-way; means for directing air throug said compartment and said passage-way in a direction opposite to the travel of said heated articles; deflectors in said compartment communicating with said passage-way for directing air into said' ai.-

sage-way; means for directing air through4 said compartment and passage-way in a direction opposite to the travel of said heated articles; and deflectors in said compartment Acommunicating with said passage-way for directing air into said articles.,

39. A cooling apparatus comprising a 'housing having a plurality of parallel passages communicating at their opposite ends and forming a continuous passage-way;

means for conveying heated articles through ysaid passage-Way in one direction; a comsaid compartment communicating with said passage-Way for directing air into said articles; and Water pipes arranged in superposed tiers in said passage-Way adjacent the dischargeiend of said passage-Way.

40. A Acooling apparatus comprising a housing having a plurality of parallel passages communicating at their oppositev ends, forming a continuous passage-Way; means for conveying heated articles through said passage-Way in one direction; a compartment disposed adjacent said passage-way, said compartmentbeing co-extensive With said passage-Way for a portion adjacent the discharge end thereof, and4 then merging into saidpassage-Way; means for directing air through said compartment and passageway inv a direction op osite to the travel of said heated articles; eiectors in said compartment communicating with said passageway for directing air into said articles; and

water pipes arranged in superposed tiers in said `passage-Way adjacent the discharge end thereof; and valve means for controlling each tier of said Water pipes.

41. A cooling apparatus comprising a housing having a plurality of parallel passages communicating'at their opposite ends, forming a continuous passage-way; means for conveying heated articles through said passage-Way in one direction; a compartment disposed adjacent' said passage-Way,

saidl compartment being co-ext'ensive With said passage-way for a portion adjacent the discharge .end thereof, and then merging into said passage-Way; means for directing air through said compartment and passage- Way in a direction opposite to the travel of said heated articles; detiectors in said com-` partment communicating with said passageway for directing air into said articles; centrally disposed guide means extending through said housing, said guide means terminating short of the discharge end ofsaid passage-way; and water spraying pipes some of which are disposed in said passage- /wayi to form a 'continuation of said guide means. i

42. A .cooling apparatus comprising a housing having a plurality of parallel passages communicating at their opposite ends,

forming al continuous passage-way; meansfor conveying heated articles through said passage-Way in one direction; said conveying means comprising conveyors arranged to travel in opposite to travel in opposite directions; a compartment disposed adjacent said passage-Way,I

said compartment being co-extensive with said passage-Way for a portion adjacent Jthe Adischarge endv thereof, and then merging into said passage-Way; means for directing j' air through said compartment and passage- Way in a direction opposite to the travel of said heated articles; and defiectors Ain'said compartment communicating with said passage-Way for directing ai'r into said articles. 43. A cooling apparatus comprising a housing sages communicatingat their oppositel ends, forming a`4 continuous passage-Way; means for conveying heated articles through said passage-Way in one direction; said conveying means comprising conveyors arranged to travel in opposite directions;la compart-y ment disposed adjacent. said passage-Way,

Vsaid `compartment being co-eXtensive with said passage-Way fora portion adjacentthe having a plurality of parallel pasdischarge en d thereof, and then merging into said passage-Way; means for directing air through said-compartment and passageway in a direction opposite to the travel of said. heated articles; detlectors in -said compartment communicating with saidpassage-way for directing air into' said articles; and water. pipes arranged in vsuperposed tierslin said passage-way adjacentthe discharge endof said passage-Way. 'j 44. A cooling apparatus comprising a housing having a plurality of parallel passages communicating at their opposite ends, forming a continuous passage-Way; means for conveying heated articles through said passage-Way in one direction; said conveying means comprising conveyors .arranged irections; a compartment disposed adjacent said `passage-Way, said compartment being co-extensive with said passage-way for a portion adjacent the discharge end thereof, and then iiiei'ging into said passage-Way; means for directing air through said Way in a direction .opposite to the travel of said heated articles; deiiectors'in said compartment communicating with saidpassageway for directing air into said articles; vyater pipes arranged in suprposed tiers in said passage-Wayadjacent the discharge en d of said passage-Way; and Valve means for` controlling each tier of said Water pipes.

45. A cooling apparatus comprising a housing having a plurality of parallel passages communicating a t their opposite ends, forming a continuous passage-Way; means for conveying heated articles through said passage-way in one direction, said conveying means comprising. conveyors arranged to traveljn opposite directions; a compartment disposed adjacent said passage-Way,v said compartment being co-extensive With said passage-Way for a portion adjacent the compartment and passage-k discharge end thereof, and 'then merging into said passage-Way; means for directing air through said compartment and passage- Way in a direction opposite to the travel A of said heated articles; defiectors in said compartment communicating with said passage-way for directing air into said articles; centrally disposed guide ineans extending through said housing, said guide means terininating short of the discharge end of said 10 passage-Way' and Water .spraying pipes Some of Whidh are disposed in said passageway to form a 'continuation of said guide means.

' In testimony whereof We have signed' our i5' 

